intsvy.per.pv: Calculates percentiles

In intsvy: International Assessment Data Manager

Calculates percentiles

Description

Calculates percentiles for plausible values

Usage

  intsvy.per.pv(pvnames, by, per, data, export=FALSE, name= "output", 
  folder=getwd(), config)

Arguments

pvnames	The names of columns corresponding to the achievement plausible scores.
per	User-defined percentiles (e.g., per = c(5, 10, 25, 75, 90, 95)).
by	The label of the categorical grouping variable (e.g., by="IDCNTRYL") or variables (e.g., by=c("IDCNTRYL", "ITSEX")).
data	An R object, normally a data frame, containing the data from intsvy studies.
export	A logical value. If TRUE, the output is exported to a file in comma-separated value format (.csv) that can be opened from LibreOffice or Excel.
name	The name of the exported file.
folder	The folder where the exported file is located.
config	Object with configuration of a given study. Should contain the slot 'prefixes' with prefixes of filenames with the student, home, school, and teacher data.

Value

intsvy.per.pv returns a data frame with percentiles and associated standard errors. Default weights (e.g. "TOTWGT" in TIMSS) and percentiles are specified in the config parameter.

See Also

pisa.per.pv, pirls.per.pv, timss.per.pv

Examples

  ## Not run: 
    timss.per.pv(pvlabel= paste0("BSMMAT0", 1:5), 
    per = c(5, 10, 25, 50, 75, 90, 95), by="IDCNTRYL", data=timss8)
    
    intsvy.per.pv(pvnames= paste0("BSMMAT0", 1:5),  by="IDCNTRYL", 
    data=timss8, config=timss8_conf)
    
    pirls.per.pv(pvlabel= paste0("ASRREA0", 1:5), by="IDCNTRYL", data=pirls)
    
    intsvy.per.pv(pvnames= paste0("ASRREA0", 1:5), 
    per = c(5, 10, 25, 50, 75, 90, 95), by="IDCNTRYL", data=pirls, 
    config=pirls_conf)
    
    pisa.per.pv(pvlabel= paste0("PV",1:10,"MATH"), 
    per=c(10, 25, 75, 90), by="CNT", data=pisa)
    
    intsvy.per.pv(pvnames= paste0("PV",1:10,"MATH"), 
    by="CNT", data=pisa, config=pisa_conf)
  
## End(Not run)

intsvy documentation built on May 29, 2024, 7:10 a.m.